As stated, looking for recommendations for a siren or siren light combo that I can trigger via the alarm outputs on a camera or on my NVR. I have a relay one the NVR but am using it for other purposes so I need this to work off the non relayed outputs I have. Any recommendations for something good but not bank breaking? I'd end up needing a bunch, and they would need to be quite the loud siren as they would be covering outdoor spaces with distances reaching 1000' feet. Though after dark in a quiet area any siren will surely get attention. I have a few for testing but they all would need a relay to work and that will not work for my needs. Thanks all!